The calculated distance (air line) between Marly and Montigny-lès-Metz is approximately 2 miles respectively 4 kilometers.
By car or train, the actual journey to Montigny-lès-Metz is certainly longer, as only the direct route (as the crow flies) between Marly and Montigny-lès-Metz has been calculated here.
Air line (approximately)
4 kilometers
2 nautical miles